Machine for use in conjunction with motor in propelling a boat



A ma a, 19246 1,490,046

- W. J. TURNBULL MACHINE FOR USE IN CONJUNCTION WITH MOTOR IN PROPELLINGA BOAT Filed May 14, 1923 .INuENTn MILLIflM-JIURNBU 14.

Patented Apr. 8, 1924.

STATES PATENT OFFICE.

WILLIAM JAMES TURNIBULL, 0F MANVILLE, ALBERTA, CANADA.

MACHINE FOR USE IN CONJUNCTION WITH MOTO'R IN PROPELLING A BOAT.

Application filed May 14, 1923. Seria1 No. 639,019.

To all whom it may concern:

Be it known that I, WILLIAM JAMES TURNBULL, of the village of Manville,in the Province of Alberta, Canada, having invented a new and usefulMachine for Use in Conjunction with Motor in Propelling a Boat, dohereby declare that the following is a full, clear, and exactdescription of the same. i

This invention relates to improvements in motor boats and particularlyto improvements in means for attaching the motor to the boat, and theobjects of the invention are to provide improved means of this characterpreferably for motors of the direct drive type in which the housing ortube encloses the shaft and supports it from the base of the engine tothe propeller.

Further obj cots are the provision of means intermediately connected tothe tube whereby the engine is adapted to be swung on its bearings,permitting the motor to be installed further forward in the boat thanhas been possible with the construction heretofore used.

Still further objects are the provision of means whereby the motor issecured to a solid engine bed and sits lower in the boat, this providinga. steadier boat while permitting the engine to tilt on its bearings,thus lowering and raising the ropeller at will with the shaft, thepropel er rising out of the water to the stern of the boat, therebyallowing accessibility to it, the propeller being also protected frominjury when meeting with any obstruction.

With the foregoing and other objects in view, the invention consistsessentially in the novel arrangement and construction of parts asdescribed in the present specification and illustrated by theaccompanying drawings that form part of the same.

Referring now to the drawings, in which like characters of referenceindicate corre sponding parts in each figure,

Figure 1 is a side elevation, showing the position of the propeller whenthe engine,

is tilted upwardly, with dotted lines showing the position of the devicein relation to the stern-piece when the engine is tilted downwardly.

Figure 2 is a side elevation of the housing with means for swinginglymounting the engine and also adapted to receive the propeller shaft.

Figure 3 is a plan view of Figure 1.

Figure 4 is a longitudinal section.

Figure 5 is a detail plan View of the receiving member for thepropeller'shaft.

Figure 6 is a section through the receiving member.

Figure 7 is an end view of the stern.

Figure 8 is a section on line 8-8 of Figure 4.

Figure 9 is a section on line 9-9 of Fig ure 4:.

Figure 10 is a front endview, with the receiving member and enginesupporting bracket removed.

Figure 11 is a detail of the bracket for swingingly supporting theengine and adapted to be attached to the main body.

In the drawings, 10 designates a housing adapted to lit the stern end ofa boat and so formed that part of the rear end and bottom are in opencommunication with the water. 11 is a bearing bracket connected to theforward end of the housing and having journalled therein a trunnionshaft 12 permanently connected to the engine 13 of the usual standardconstruction and provided with a propeller shaft 14:, in turn providedwith a tubular covering 15 adapted to envelop the shaft and formed atits rear end with a web 16. The forward end of this tube passes througha flexible packing gland 17, as shown in Figure 5, and designed to befixedly secured on the end of the housing 10.

From the foregoing it will be noted that the engine is adapted to tilton the bearings 18.

The flexible packing gland 17 is constructed of pliable waterproofmaterial, preferably of tubular shape, and is provided with a centralaperture 19 and also an outside metal ring 20 having orifices thereinwhereby the gland is fixedly secured to the front end plate 21, as shownin Figure 10, of the housing, the tubular aperture in the glandregistering with the aperture 22 in the end plate, the inner end of saidaperture 19 being provided with a metal sleeve 23 adapted to connectwith the engine 13, thus allowing the shaft and housing to tilt with theenglue and at the same time adapted to form an effective protectionagainst the watch coming into the boat.

In Figure 1 is illustrated the position of the propeller when the enginetilts upwardly and also, in dotted lines, the opposite posi tion whenthe engine is tilted downwardly.

The housing is also provided with a projection 24 adapted to extend intothe openings made for it in the stern-piece and keel, or, if desired,thehousing can be made without this projecting flange.

To lock the propeller shaft a foldable lever 25 is provided, connectedat one end to the propeller and extending upwardly and outwardly throughthe top of the housing 10.

As many changes could be made in the above construction and manyapparently widely different embodiments of my invention, within thescope of the claims, constructed without departing from the spirit orscope thereof, it is intended that allm'atter contained in theaccompanying specification and drawings shall be interpreted asillustrative and not in a limiting sense.

What I claim as my invention is:

1. In a propelling device, the combination with a housing adapted to fitthe stern end of a boat, said housing being formed sothat part of therear end and bottom are in open communication with the water, a bearingbracket connected to the forwardend of the housing, a trunnion shaftjournalled in said bracket and permanently attached to an engine, apropeller shaft connected to the engine, a tube enveloping the shaft,with a web formed on its rear end, the forward end of the tube beingdesigned to pass through a flexible packing gland connected to thehousing and secured to the engine, means connected intermediate the tubeto swing the engine in its bearings;

2. In a propelling device of the character described, the combinationwith a suitable housing adapted to communicate with an opening in thebottom of a boat, a bearing bracket connected to the forward end of thehousing, an engine tiltably mounted in said bracket, a propeller shaftconnected to the engine, a tube for said shaft and flexible meansconnecting the tube with the engine, comprising a flexible packing glandfixedly connected to the housing and adapted to receive thercthroughsaid tube and rigid means carried by the flexible gland adapted toconnect the gland to the engine whereby on the engine being tilted ahinging point is formed by the gland to tilt the propeller shaft.

8. In a device of the character described, the combination with asuitable housing and an engine tiltably mounted on the outside of thehousing and having a propeller shaft extending through the housing, oftubular means 011 said shaft and flexible gland means on the housingadapted to engage with the tube means and provided with rigid means toconnect with the engine whereby a hinging point is formed between thehousing and the tiltably mounted engine to tilt the propeller shaft, andmeans for locking the propeller shaft when tilted.

WVILLIAM JAM-ES TUR-NBULL.

Witnesses to the signature of lVilliam James Turnbull: I

D. B. MOLEAN, lV. F. CoLBnR'r.

